INDEX TO THE PROCEEDINGS. 



Oolite of the Alps, 178. 



Oporto, Mr. Sharpe on the geology of 

 the neighbourhood of, 142. 



Ormerod, Mr., on the red sandstone of 

 Cheshire, noticed, xlv, Ixvii, 



Or this confinis, 15. 



Duriensis, 152. 



Lusitanica, 152. 



Noctilio, 151. 



•'—^ Miniensis, 152. 



Orthoceras vagans, 153. 



Oschatz, section in the Permian system 

 at, 3. 



Owen, Prof., on sauriaus from the 

 greensand of New Jersey, 380 ; no- 

 ticed, xliii. 



Palseontological Society, noticed, xciii. 



Pattison, Mr., on the coast of Cornwall, 

 xc ; on Devonian strata near Laun- 

 ceston, xci. 



Peach, Mr., on fossils from Cornwall, xci. 



Pentland Hills, Mr. Nicol on boulders 

 found on the, 23. 



Permian, Sir R. I. Murchison on the 

 origin of the term, 1. 



system in Saxony, Prof, Naumann 



on its development, 1. 



Petit Coeur, section at, 174. 



Pilla, M., on the red ammonitiferous 

 limestone of Italy, ci. 



Platysomus, Sir Philip Egerton on the 

 affinities of the genus^ 329. 



Platysomus macruriis, 329. 



Pleurotoviaria Moorei, 14. 



Pomel, M.,on a new fossil pachyderm, ci. 



Pontus, Mr. Hamilton on the geology 

 of, 362. 



Poole Harbour, Mr. Prestwich on a sec- 

 tion at, 43. 



Prestwich, Mr. J., award of WoUaston 

 medal to, xvii. 



— — , on the section from Christchurch 

 Harbour to Poole Harbour, 43; no- 

 ticed, Ivi. 



, on some fossiliferous beds above 



the red crag at Chillesford, near Or- 

 ford, Suffolk, 345. 



Ramsay, Prof., and Mr. Aveline, on 

 Wales, noticed, xxxv, xlviii, Ixvii. 



Report, Annual General, for 1849, i. 



, Museum and Library, iii. 



Reptiles, Prof. Owen on fossil, from 

 New Jersey, 380. 



Rldgway, Mr. Weston's further obser- 

 vations on the geology of, 317. 



Rigi, section of the, 195. 



Rogers, Prof. H., on the structure of 

 the Appalachians, 130; noticed, Ixviii, 

 Ixxvii ; theory of inverted strata, 250. 



Ryan, Loch, geology of, 1 1 ; fossils 

 from, 13. 



Sabine hills, section of the, 281. 



Salt, rock, in Asia Minor, 373. 



Salter, Mr. J. W., on fossils from the 

 Stincher river and Loch Ryan, 13; 

 on fossils of the lower Wenlock shales, 

 noticed, xxxvi. 



Sandstones, causesof their red colour, 25. 



Sardinia, Silurian rocks of, 264. 



SauU, Mr. W. D., on changes of tem- 

 perature and the levels of the oceanic 

 waters, 7 ; noticed, Ixxxiv. 



Savoy, fossil plants from the anthracite 

 formation of, Mr. Bunbury on, 130; 

 Sir R. Murchison on, 174. 



Saxony, Prof. Naumannon the Permian 

 system in, 1. 



Schio, inverted strata near, 221. 



Scratched boulders, Mr. Smith of Jor- 

 dan Hill, on, 17. 



Setti Communi, rocks of the, 224. 



Sewen, section at, 193. 



Sewer-kalk, 185. 



Sharpe, Mr. D., on the geology of Oporto 

 and the Silurian slates and coal of 

 Vallongo, 142; noticed, xliii, Ivii. 



, on slaty cleavage, 111; noticed, 



Ixxiv. 



, onTylostoma, 376. 



Sigillaria alternans, stump of, 355. 



Sigillariae with conical tap roots, 354. 



Sillcification, Mr. Bowerbank on the 

 mode of, 321. 



Silurian rocks of Wigtonshire, Mr. J. 

 C. Moore on the, 7. 



of Sardinia, 264. 



Silurian slates and coal of Vallongo, 

 Mr. Sharpe on the, 142. 



Siphodictyum gracile, 94. 



Slsmonda, Prof. A., on the Tarentaise, 

 cviii. 



Slate-pencil rock, 115. 



Smith, Mr, James, of Jordan Hill, on 

 scratched boulders, 17. 



Solenhofen, freshwater formations near, 

 234. 



Sommer, Dr., on Western Australia, 51. 



Sonthofen iron-mines, 203. 



Souffriere of St. Vincent, Major Davis 

 on the, 53. 



Stincher river, fossils from the, 13. 



St. Vincent, Major Davis on the Souf- 

 friere of, 53. 



Survey, Geological, of Great Britain and 

 Ireland, noticed, xciii. 



Tallavignes, M., on nummulite rocks, ci. 



Tarentaise, Mr. Bunbury on fossil plants 

 from the, 130. 



Tatra mountains, section of the, 259. 



Tchihatcheff, M. P. de, notice of his re- 

 searches in Asia Minor, 360. 



Thomson, Mr. T. G. R., on the position 



